The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
Feb. 25, 2014
Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;
Hyun-Ju Choi, Seoul, KR;
Chang-Ho Lee, Suwon-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light emitting diode includes a hole injection layer, a hole transport layer, an emission layer, an electron transport layer and an electron injection layer. The hole transport layer is disposed on the hole injection layer. The emission layer is disposed on the hole transport layer. The electron transport layer is disposed on the emission layer and including at least one selected from an anthracene derivative and a pyrene derivative. The electron injection layer is disposed on the electron transport layer. The organic light emitting diode includes a material that electron mobility is lower than a traditional material of the electron transport layer. Thus, a stain and a roll-off phenomenon in the low gray scale area may be improved.